package com.qf.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.qf.pojo.DtsUser;
import com.qf.vo.DayStatis;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;

import java.util.List;

/**
 * <p>
 * 用户表 Mapper 接口
 * </p>
 *
 * @author zhaojian
 * @since 2021-05-12
 */
public interface DtsUserMapper extends BaseMapper<DtsUser> {

    /**
     * 用户根据天的统计的数量
     * @param statisDayNum
     * @return
     */
    @Select("select count(8) cnts , DATE_FORMAT(add_time,'%Y-%m-%d') dayStr\n" +
            "from dts_user\n" +
            "where add_time > DATE_ADD(now(),INTERVAL -#{sdn} day)\n" +
            "group by dayStr")
    List<DayStatis> findDayStatis(@Param("sdn") Integer statisDayNum);
}
